diff --git a/resources/views/errors/503.blade.php b/resources/views/errors/503.blade.php
index fb409d4..620bda1 100644
--- a/resources/views/errors/503.blade.php
+++ b/resources/views/errors/503.blade.php
@@ -3,7 +3,6 @@
 <head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<meta http-equiv="refresh" content="3">
 <title>Update läuft · CluBird</title>
 <style>
   *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
@@ -86,5 +85,16 @@
     <h1>Update wird durchgeführt</h1>
     <p>Die Anwendung wird aktualisiert.<br>Diese Seite lädt automatisch neu.</p>
   </div>
+<script>
+  (function(){
+    function check(){
+      fetch('/ping',{cache:'no-store'}).then(function(r){
+        if(r.ok) window.location.reload();
+        else setTimeout(check,3000);
+      }).catch(function(){ setTimeout(check,3000); });
+    }
+    setTimeout(check,3000);
+  })();
+</script>
 </body>
 </html>
diff --git a/routes/web.php b/routes/web.php
index 74b8c09..bb96fed 100644
--- a/routes/web.php
+++ b/routes/web.php
@@ -12,6 +12,8 @@ use App\Http\Controllers\UI\Security\SecurityController;
 use Illuminate\Support\Facades\Auth;
 use Illuminate\Support\Facades\Route;
 
+Route::get('/ping', fn() => response('ok', 200))->name('ping');
+
 Route::get('/', function () {
     try {
         $setupDone = \App\Models\Setting::get('setup_completed', '0') === '1';
